Write three points to prove that a Beam Balance is a perfect balance. (Explain the answer in three points; 7 points; No Spam; Don't Copy from Google; Best Answer to be marked as Brainliest)
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First, the pan is where you place the sample whose mass you want to find. Attached to the pan are three beams with measuring scales and counterweights on each beam. At the end of the three beams is a pointer that lines up with a scale on the base of the balance. It has a beam which is supported by a fulcrum.
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